The present application relates to a kind of
testosterone microcrystal, freeze-dried
powder injection, suspension and its preparation method.The particle size range of
testosterone microcrystal meets: D90≤20 μm.
Testosterone microcrystal freeze-dried
powder injection includes
testosterone microcrystal, suspending agent and freeze-
drying protective agent;The
mass ratio of the suspending agent and the
mass of the testosterone microcrystal meets (0.3-2):1.The particle size range of the testosterone microcrystal meets: D90≤20 μm.
Testosterone microcrystal suspension includes water, testosterone microcrystal, suspending agent and freeze-
drying protective agent;The concentration of the suspending agent is 0.3%-2%.The preparation of testosterone microcrystal prepared in the present application is short-acting preparation, has the advantages of small
liver toxicity,
dose accuracy and easy to use.